Streetstyle London on Instagram: “#beautiful @jlo 💋”

If daily couple workouts weren't enough, J-Lo and A-Rod have now committed to a grueling new diet plan, quitting eating sugar and even most carbs.

Jennifer Lopez adds a pop to her all-black gym look with orange Nike sneakers in Miami, Feb. 23. #jlo #jenniferlopezstyle #nike #celebrityfashion #athleisure

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The 49-year-old entertainer looked supremely fit in her workout wear after beginning round two of her extreme no-sugar, no-carb 10-day diet with boyfriend Alex Rodriguez.